import { useWaterDataByDate } from '@/hooks/useWaterData';
import { getQuickWaterAmount } from '@/utils/userPreferences';
import { useFocusEffect } from '@react-navigation/native';
import dayjs from 'dayjs';
import * as Haptics from 'expo-haptics';
import { useRouter } from 'expo-router';
import LottieView from 'lottie-react-native';
import React, { useCallback, useEffect, useMemo, useRef, useState } from 'react';
import {
  Animated,
  StyleSheet,
  Text,
  TouchableOpacity,
  View,
  ViewStyle
} from 'react-native';
import { AnimatedNumber } from './AnimatedNumber';

interface WaterIntakeCardProps {
  style?: ViewStyle;
  selectedDate?: string; // 新增：选中的日期，格式为 YYYY-MM-DD
}

const WaterIntakeCard: React.FC<WaterIntakeCardProps> = ({
  style,
  selectedDate
}) => {
  const router = useRouter();
  const { waterStats, dailyWaterGoal, waterRecords, addWaterRecord } = useWaterDataByDate(selectedDate);
  const [quickWaterAmount, setQuickWaterAmount] = useState(150); // 默认值，将从用户偏好中加载

  // 计算当前饮水量和目标
  const currentIntake = waterStats?.totalAmount || 0;
  const targetIntake = dailyWaterGoal || 2000;

  const animationRef = useRef<LottieView>(null);

  // 为每个时间点创建独立的动画值
  const animatedValues = useMemo(() =>
    Array.from({ length: 24 }, () => new Animated.Value(0))
    , []);

  // 计算柱状图数据
  const chartData = useMemo(() => {
    if (!waterRecords || waterRecords.length === 0) {
      return Array.from({ length: 24 }, (_, i) => ({ hour: i, amount: 0, height: 0 }));
    }

    // 按小时分组数据
    const hourlyData: { hour: number; amount: number }[] = Array.from({ length: 24 }, (_, i) => ({
      hour: i,
      amount: 0,
    }));

    waterRecords.forEach(record => {
      // 优先使用 recordedAt，如果没有则使用 createdAt
      const dateTime = record.recordedAt || record.createdAt;
      const hour = dayjs(dateTime).hour();
      if (hour >= 0 && hour < 24) {
        hourlyData[hour].amount += record.amount;
      }
    });

    // 找到最大饮水量用于计算高度比例
    const maxAmount = Math.max(...hourlyData.map(data => data.amount), 1);
    const maxHeight = 20; // 柱状图最大高度

    return hourlyData.map(data => ({
      hour: data.hour,
      amount: data.amount,
      height: maxAmount > 0 ? (data.amount / maxAmount) * maxHeight : 0
    }));
  }, [waterRecords]);

  // 判断是否是今天
  const isToday = selectedDate === dayjs().format('YYYY-MM-DD') || !selectedDate;

  // 加载用户偏好的快速添加饮水默认值
  useFocusEffect(
    useCallback(() => {
      const loadQuickWaterAmount = async () => {
        try {
          const amount = await getQuickWaterAmount();
          setQuickWaterAmount(amount);
        } catch (error) {
          console.error('加载快速添加饮水默认值失败:', error);
          // 保持默认值 250ml
        }
      };

      loadQuickWaterAmount();
    }, [])
  );

  // 触发柱体动画
  useEffect(() => {
    if (chartData && chartData.length > 0) {
      // 重置所有动画值
      animatedValues.forEach(animValue => animValue.setValue(0));

      // 找出所有有饮水记录的柱体索引
      const activeBarIndices = chartData
        .map((data, index) => ({ data, index }))
        .filter(item => item.data.amount > 0)
        .map(item => item.index);

      // 依次执行动画，每个柱体间隔100ms
      activeBarIndices.forEach((barIndex, sequenceIndex) => {
        setTimeout(() => {
          Animated.spring(animatedValues[barIndex], {
            toValue: 1,
            tension: 150,
            friction: 8,
            useNativeDriver: false,
          }).start();
        }, sequenceIndex * 100); // 每个柱体延迟100ms
      });
    }
  }, [chartData, animatedValues]);

  // 处理添加喝水 - 右上角按钮直接添加
  const handleQuickAddWater = async () => {
    // 触发震动反馈
    if (process.env.EXPO_OS === 'ios') {
      Haptics.impactAsync(Haptics.ImpactFeedbackStyle.Medium);
    }

    animationRef.current?.play();

    // 使用用户配置的快速添加饮水量
    const waterAmount = quickWaterAmount;
    // 如果有选中日期，则为该日期添加记录；否则为今天添加记录
    const recordedAt = selectedDate ? dayjs(selectedDate).toISOString() : dayjs().toISOString();
    await addWaterRecord(waterAmount, recordedAt);
  };

  // 处理卡片点击 - 跳转到饮水设置页面
  const handleCardPress = () => {
    // 触发震动反馈
    if (process.env.EXPO_OS === 'ios') {
      Haptics.impactAsync(Haptics.ImpactFeedbackStyle.Light);
    }

    // 跳转到饮水设置页面，传递选中的日期参数
    router.push({
      pathname: '/water-settings',
      params: selectedDate ? { selectedDate } : undefined
    });
  };


  return (
    <TouchableOpacity
      style={[styles.container, style]}
      onPress={handleCardPress}
      activeOpacity={0.8}
    >
      <LottieView
        ref={animationRef}
        autoPlay={false}
        loop={false}
        source={require('@/assets/lottie/Confetti.json')}
        style={{
          width: 150,
          height: 150,
          position: 'absolute',
          left: '15%',
        }}
      />


      {/* 标题和加号按钮 */}
      <View style={styles.header}>
        <Text style={styles.title}>喝水</Text>
        {isToday && (
          <TouchableOpacity style={styles.addButton} onPress={handleQuickAddWater}>
            <Text style={styles.addButtonText}>+ {quickWaterAmount}ml</Text>
          </TouchableOpacity>
        )}
      </View>


      {/* 柱状图 */}
      <View style={styles.chartContainer}>
        <View style={styles.chartWrapper}>
          <View style={styles.chartArea}>
            {chartData.map((data, index) => {
              // 判断是否有活动的小时
              const isActive = data.amount > 0;

              // 动画变换：高度从0到目标高度
              const animatedHeight = animatedValues[index].interpolate({
                inputRange: [0, 1],
                outputRange: [0, data.height],
              });

              // 动画变换：透明度从0到1（保持柱体在动画过程中可见）
              const animatedOpacity = animatedValues[index].interpolate({
                inputRange: [0, 0.1, 1],
                outputRange: [0, 1, 1],
              });

              return (
                <View key={`bar-container-${index}`} style={styles.barContainer}>
                  {/* 背景柱体 - 始终显示，使用蓝色系的淡色 */}
                  <View
                    style={[
                      styles.chartBar,
                      {
                        height: 20, // 背景柱体占满整个高度
                        backgroundColor: '#F0F9FF', // 蓝色系淡色
                      }
                    ]}
                  />

                  {/* 数据柱体 - 只有当有数据时才显示并执行动画 */}
                  {isActive && (
                    <Animated.View
                      style={[
                        styles.chartBar,
                        {
                          height: animatedHeight,
                          backgroundColor: '#7DD3FC', // 蓝色系
                          opacity: animatedOpacity,
                        }
                      ]}
                    />
                  )}
                </View>
              );
            })}
          </View>
        </View>
      </View>

      {/* 饮水量显示 */}
      <View style={styles.statsContainer}>
        {currentIntake !== null ? (
          <AnimatedNumber
            value={currentIntake}
            style={styles.currentIntake}
            format={(value) => `${Math.round(value)}ml`}
            resetToken={selectedDate}
          />
        ) : (
          <Text style={styles.currentIntake}>——</Text>
        )}
        <Text style={styles.targetIntake}>
          / {targetIntake}ml
        </Text>
      </View>

    </TouchableOpacity>
  );
};

const styles = StyleSheet.create({
  container: {
    flex: 1,
    justifyContent: 'space-between',
    borderRadius: 20,
    padding: 16,
    shadowColor: '#000',
    shadowOffset: {
      width: 0,
      height: 4,
    },
    shadowOpacity: 0.08,
    shadowRadius: 20,
    elevation: 8,
    backgroundColor: '#FFFFFF',
  },
  header: {
    flexDirection: 'row',
    justifyContent: 'space-between',
    alignItems: 'center',
    marginBottom: 4,
    minHeight: 22,
  },
  title: {
    fontSize: 14,
    color: '#192126',
    fontWeight: '500',
  },
  addButton: {
    borderRadius: 16,
    backgroundColor: '#E1E7FF',
    alignItems: 'center',
    justifyContent: 'center',
    paddingHorizontal: 6,
    paddingVertical: 5,
  },
  addButtonText: {
    fontSize: 10,
    color: '#6366F1',
    fontWeight: '700',
    lineHeight: 10,
  },
  chartContainer: {
    flex: 1,
    justifyContent: 'center',
  },
  chartWrapper: {
    width: '100%',
    alignItems: 'center',
  },
  chartArea: {
    flexDirection: 'row',
    alignItems: 'flex-end',
    height: 20,
    width: '100%',
    maxWidth: 240,
    justifyContent: 'space-between',
    paddingHorizontal: 4,
  },
  barContainer: {
    width: 4,
    height: 20,
    alignItems: 'center',
    justifyContent: 'flex-end',
    position: 'relative',
  },
  chartBar: {
    width: 4,
    borderRadius: 1,
    position: 'absolute',
    bottom: 0,
  },
  statsContainer: {
    flexDirection: 'row',
    alignItems: 'baseline',
    marginTop: 6,
  },
  currentIntake: {
    fontSize: 14,
    fontWeight: '600',
    color: '#192126',
  },
  targetIntake: {
    fontSize: 12,
    color: '#6B7280',
    marginLeft: 4,
  },
});

export default WaterIntakeCard;